| Official Name: | Kisly Klyuch |
| Native Name: | Кислый Ключ |
| Settlement Type: | Selo |
| Pushpin Map: | Russia Amur Oblast#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Amur Oblast |
| Subdivision Name3: | Magdagachinsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +9:00 |
| Coordinates: | 53.65°N 149°W[1] |
Kisly Klyuch (Russian: Кислый Ключ) is a rural locality (a selo) in Gonzhinskoye Rural Settlement of Magdagachinsky District, Amur Oblast, Russia. The population was 24 as of 2018.[2]
Kisly Klyuch is located on northwest on the Amur–Zeya Plain, 46 km northwest of Magdagachi (the district's administrative centre) by road. Gonzha is the nearest rural locality.[3]